What is the KSS Direct Drive Type?

The Direct Drive Type is a compact miniature actuator that integrates a hollow stepper motor with a Ball Screw and Ball Spline (BSSP), providing precise linear and rotary motion within a single unit.

What are the advantages of a direct-drive actuator?

The direct-drive design eliminates belts and pulleys, reducing wear, maintenance and particle generation while improving positioning accuracy and mechanical reliability.

Does the Direct Drive Type support vacuum functionality?

Yes. Models equipped with a 42 mm hollow stepper motor can provide linear (Z), rotary (Θ) and vacuum (V) functions within one actuator.

Which industries typically use Direct Drive actuators?

Direct Drive actuators are widely used in robotics, semiconductor manufacturing, medical devices, laboratory automation, electronics production and precision assembly systems.

How does BIBUS Kft. support Direct Drive projects?

BIBUS Kft. provides engineering support for actuator selection, sizing, integration and complete linear motion system design.

KSS KSS Direct Drive Type | Miniature Actuator

The KSS Direct Drive Type is a multifunctional miniature actuator that combines a hollow stepper motor with an integrated Miniature Ball Screw with Ball Spline (BSSP) in a single ultra-compact unit. The direct-drive design enables precise linear and rotary motion while minimizing installation space and mechanical complexity.

The combination of the hollow motor and the integrated BSSP creates an exceptionally slim actuator body, making it an excellent solution for equipment where every millimeter of installation space matters. Unlike belt-driven systems, the Direct Drive configuration contains no belts or pulleys, eliminating wear particles and reducing maintenance requirements.

Its simplified mechanical construction uses fewer components, resulting in improved reliability, easier machine integration and higher positioning accuracy.

For actuators equipped with a 42 mm motor, the Direct Drive Type supports not only linear (Z) and rotary (Θ) motion, but also an integrated vacuum (V) function, allowing multiple machine functions to be combined within a single actuator.

Available with NEMA 11 and NEMA 17 hollow stepper motors, the Direct Drive Type delivers repeatability of ±0.010 mm for the Z-axis and ±0.03° for the rotary axis, making it suitable for demanding precision automation applications.

Key Features

✔ Direct-drive construction

✔ Hollow stepper motor

✔ Integrated Ball Screw with Ball Spline (BSSP)

✔ Ultra-slim actuator body

✔ No belts or pulleys

✔ No wear particles from belt transmission

✔ Linear (Z) and rotary (Θ) motion

✔ Vacuum (V) function available on Ø42 models

✔ Reduced component count

✔ High positioning accuracy

✔ Engineering support from BIBUS Kft.

The KSS Direct Drive Type is ideal for robotics, semiconductor manufacturing, laboratory automation, medical equipment, electronics assembly, precision positioning systems and compact industrial automation.

The engineers at BIBUS Kft. provide support with actuator selection, sizing, integration and complete motion system design.

Why Choose the Direct Drive Type?

✔ Ultra-compact actuator design

✔ No belt maintenance

✔ Clean operation without belt wear

✔ High positioning accuracy

✔ Integrated multifunctional actuator

✔ Engineering support from BIBUS Kft.

What Problems Does the Direct Drive Type Solve?

✔ Limited installation space

✔ Belt wear and maintenance

✔ Complex multi-axis systems

✔ High-precision positioning

✔ Compact machine design

✔ Simplified mechanical construction

How Can We Help?

Our engineers support you throughout every stage of your project.

We can help you with:

Direct Drive actuator selection
Actuator sizing
Motion system design
Vacuum actuator selection
Precision positioning applications
Engineering consultation

Not sure whether the Direct Drive Type is the right solution?

Send us your technical requirements and our engineers will recommend the optimum actuator.

Direct Drive Type